KR20100006251A - Liquid crystal display module - Google Patents

Liquid crystal display module Download PDF

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Publication number
KR20100006251A
KR20100006251A KR1020080066400A KR20080066400A KR20100006251A KR 20100006251 A KR20100006251 A KR 20100006251A KR 1020080066400 A KR1020080066400 A KR 1020080066400A KR 20080066400 A KR20080066400 A KR 20080066400A KR 20100006251 A KR20100006251 A KR 20100006251A
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South Korea
Prior art keywords
liquid crystal
light guide
display module
crystal display
guide plate
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KR1020080066400A
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Korean (ko)
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KR101244775B1 (en
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김성우
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엘지디스플레이 주식회사
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Priority to KR1020080066400A priority Critical patent/KR101244775B1/en
Priority to CN2008101869930A priority patent/CN101625480B/en
Priority to US12/314,916 priority patent/US8031294B2/en
Publication of KR20100006251A publication Critical patent/KR20100006251A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133311—Environmental protection, e.g. against dust or humidity
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133325—Assembling processes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/11—Printed elements for providing electric connections to or between printed circuits
    • H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)

Abstract

PURPOSE: A liquid crystal display module is provided to remove the needs of the design change of the LCD configuration structure or the mold modification by changing the combination method of backlight unit. CONSTITUTION: Multiple optical sheets(122,124) are composed in the lower part of the liquid crystal panel(101). A light guide panel(134) is composed in the lower part of the multiple of optical sheets. A top cover(112) and bottom cover(114) are combined in the liquid crystal panel, the optical sheet, and the light guide panel. Multiple LED(Light Emitting Diode) lamps(132) are mounted in a flexible printed circuit board(131). In the LED array, the external circuit connection unit(133) of the flexible printed circuit board is drawn between the bottom cover and light guide panel. The base space margin exists between the light guide plate and bottom cover. The thickness of the flexible printed circuit board is not over the space margin.

Description

액정표시모듈{Liquid crystal display module}Liquid crystal display module

본 발명은 액정표시모듈에 관한 것으로서, 특히 백라이트 유닛의 결합 방식을 변경함으로써 액정표시모듈 구성 구조물의 설계 변경 또는 금형 수정 등이 불필요하여 공정능이 향상된 액정표시모듈에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display module, and more particularly, to a liquid crystal display module having improved process capability since it is not necessary to change a design of a structure of a liquid crystal display module or modify a mold by changing a coupling method of a backlight unit.

통상의 NTPC는 사용자가 이동간에 정보를 이용할 수 있도록 노트북(Notebook)의 사이즈로 제작된다. 이러한 NTPC에서는 정보를 표시하기 위한 표시장치로써, 액정표시모듈(Liquid Crystal Display Module)이 사용된다. Conventional NTPCs are manufactured in the size of a notebook so that the user can use the information between them. In such an NTPC, a liquid crystal display module is used as a display device for displaying information.

LCM은 액정패널과 액정패널을 구동하기 위한 구동회로부로 구성되는데, 액정패널은 두 장의 유리기판 사이에 매트릭스 형태로 배열되어진 액정셀들과 이들 액정셀들에 공급되는 신호를 각각 전환하기 위한 스위칭 소자들로 구성된다.The LCM is composed of a liquid crystal panel and a driving circuit unit for driving the liquid crystal panel. The liquid crystal panel is a liquid crystal cell arranged in a matrix form between two glass substrates and a switching element for switching the signals supplied to the liquid crystal cells, respectively. It consists of

이와 같은 액정표시모듈은 외부에서 들어오는 빛의 양을 조절하여 화상을 표시하는 수광 장치이기 때문에 상기 액정패널에 광을 조사하기 위한 별도의 광원, 즉 백라이트 램프를 구비한 백라이트 유닛(Backlight unit)이 필요하다.Since the liquid crystal display module is a light receiving device that displays an image by controlling the amount of light coming from the outside, a separate light source for illuminating the liquid crystal panel, that is, a backlight unit having a backlight lamp is required. Do.

도 1은 일반적인 액정표시모듈의 구성을 간략히 도시한 단면도로서, 액정패널(1)이 안착된 서포트 메인(Support Main)(5)과, 상기 액정패널(1)의 가장자리를 포함하여 상기 서포트 메인(5)을 감싸는 탑 커버(Top cover)(12)와, 다수의 광학시트(22, 24), 도광판(34) 및 상기 탑 커버(12)에 대응되는 바텀 커버(Bottom cover)(14)를 포함한다.FIG. 1 is a cross-sectional view schematically illustrating a configuration of a general liquid crystal display module. The support main 5 on which the liquid crystal panel 1 is seated and the edge of the liquid crystal panel 1 include the support main 5. 5) a top cover 12 surrounding the top, a plurality of optical sheets 22 and 24, a light guide plate 34, and a bottom cover 14 corresponding to the top cover 12. do.

상기 액정패널(1)은 상부 및 하부 편광판(42, 44)이 각각 부착된 두 장의 유리 기판들 사이에 액정이 주입되고, 매트릭스 형태로 배치된 액정화소셀들 각각은 박막트랜지스터(Thin Film Transistor: TFT)에 의해 구동된다. In the liquid crystal panel 1, liquid crystal is injected between two glass substrates on which upper and lower polarizers 42 and 44 are attached, respectively, and each of the liquid crystal pixel cells arranged in a matrix form is a thin film transistor (Thin Film Transistor). TFT).

상기 탑 커버(12)는 상기 서포트 메인(5)의 측면과 액정패널(1)의 가장자리를 감싸도록 절곡되며, 상기 서포트 메인(5)과 탑 커버(12)는 도시하지 않은 스크류(Screw)에 의해 조립되는 것이 일반적인 방법이다.The top cover 12 is bent to surround the side of the support main 5 and the edge of the liquid crystal panel 1, and the support main 5 and the top cover 12 are attached to a screw (not shown). It is a common method to assemble by.

상기 서포트 메인(5)은 통상 몰드물로 제작되지만 최근, 고휘도 텔레비전이나 고휘도 모니터에 대응하여 고온에 대한 방열특성이 우수한 금속 예를 들면, 알루미늄(Al)으로 제작되며 상기 액정패널(1)이 안착된다.The support main 5 is usually made of a mold, but recently, a metal having excellent heat dissipation characteristics against a high temperature, for example, aluminum (Al), is produced in response to a high brightness television or a high brightness monitor, and the liquid crystal panel 1 is seated. do.

아울러 상기 액정표시모듈에 구성되는 백라이트 유닛으로는, 광을 발생시키기 위한 LED램프(32)와, 상기 LED램프(32)로부터 입사되는 광을 평면광원으로 변환하는 도광판(34)과, 상기 도광판(34)의 배면에 설치되는 반사판(36)과, 상기 도광판(34) 상부에 순차적으로 적층되는 확산시트(22), 프리즘시트(24) 등을 포함하는 다수의 광학시트들을 포함하여 구성된다. In addition, the backlight unit configured in the liquid crystal display module includes an LED lamp 32 for generating light, a light guide plate 34 for converting light incident from the LED lamp 32 into a planar light source, and the light guide plate ( 34 includes a plurality of optical sheets including a reflecting plate 36 installed on the rear surface of the light guide plate and a diffusion sheet 22, a prism sheet 24, and the like, which are sequentially stacked on the light guide plate 34.

상기 LED램프(32)에서 발생되는 빛은 상기 도광판(34)의 측면에서 상기 도광 판(34)에 입사된 후 상기 반사판(36)을 통해 면광원으로 전환되어 상기 액정패널(1) 측으로 제공된다. 이때 상기 도광판(34)은 두께를 가지며 경사진 배면과 수평인 전면을 가지는 형태로 제작되며, 상기 반사판(36)은 상기 도광판(34)의 배면을 통해 자신에게 입사되는 광을 상기 도광판(34) 쪽으로 재반사시킴으로써 광손실을 줄이는 역할을 한다. The light generated by the LED lamp 32 is incident on the light guide plate 34 at the side of the light guide plate 34, and then is converted into a surface light source through the reflective plate 36 and provided to the liquid crystal panel 1. . In this case, the light guide plate 34 has a thickness and is formed in a shape having an inclined rear surface and a horizontal front surface, and the reflector plate 36 receives light incident on the light guide plate 34 through the rear surface of the light guide plate 34. By reflecting back to the side to reduce the loss of light.

아울러 상기 LED램프(32)에서 출사된 빛의 사용 효율을 극대화하기 위해 광반사율이 높은 물질로 상기 LED램프(32)를 감싸는 램프 하우징(lamp housing)을 더욱 구성하기도 한다. In addition, in order to maximize the use efficiency of the light emitted from the LED lamp 32, a lamp housing may be further configured to surround the LED lamp 32 with a material having high light reflectance.

이러한 구성의 액정표시모듈에서 상기 LED램프(32)는, 도 2를 참조하면, NTPC에서 통상 FPC(Flexible printed circuit)(31) 상에 다수개의 LED램프(32)가 실장되는 LED어레이(30) 형태로 제공된다.In the liquid crystal display module having such a configuration, the LED lamp 32 is an LED array 30 in which a plurality of LED lamps 32 are mounted on a flexible printed circuit (FPC) 31 in NTPC. It is provided in the form.

이에 상기 도 3의 액정시표모듈 배면 사시도와 같이, 상기 FPC(31) 상에 다수개의 LED램프(32)가 실장된 일종의 LED어레이(LED array)(30) 형태로 상기 액정표시모듈에 실장되고, 상기 FPC(31)의 일측에서 연장된 외부회로접속부(33)를 상기 바텀 커버(14)에 형성된 홀(H)을 통해 외부로 인출하여 제어신호 및 동작 전원 등을 공급하는 백라이트 제어용 회로(미도시함)와 같은 외부회로와 연결될 수 있도록 하는 구조를 채용하고 있다. Accordingly, as shown in the rear perspective view of the liquid crystal display module of FIG. 3, the LCD is mounted in the liquid crystal display module in the form of an LED array 30 in which a plurality of LED lamps 32 are mounted on the FPC 31. And a circuit for controlling backlight and supplying control signals and operation power by drawing the external circuit connection part 33 extending from one side of the FPC 31 to the outside through the hole H formed in the bottom cover 14. It can be connected to an external circuit such as shown).

그런데, 상기한 구조는 다양한 액정표시장치 제조업체들의 요구에 따르면, 상기 FPC(31)의 외부회로접속부(33) 인출을 위한 상기 홀(H) 위치 역시 제조업체의 요구에 맞게 다양한 위치에 구성해야 하는 단점이 있다.However, the above structure has a disadvantage in that the hole H position for drawing the external circuit connection portion 33 of the FPC 31 also has to be configured in various positions according to the manufacturer's requirements according to various liquid crystal display device manufacturers' requests. There is this.

즉, 다양한 액정표시장치 제조업체 각각의 요구를 모두 수용하기 위해서는 상기 홀(H)의 요구 위치에 따라 상기 바텀 커버(14)의 금형을 여러 가지로 제작해야 하기 때문에 제조비용 상승 및 공정능 저하의 문제점이 있다.That is, in order to accommodate all of the needs of various liquid crystal display device manufacturers, the mold of the bottom cover 14 needs to be manufactured in various ways according to the required position of the hole H. There is this.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로서, LED램프의 구성에 있어서 바텀 커버(또는 탑 커버)의 금형 수정이 필요 없이 다양한 제조업체들의 요구를 모두 수용할 수 있는 액정표시모듈을 제공하는 것을 목적으로 한다.The present invention has been made to solve the above problems, to provide a liquid crystal display module that can accommodate all the needs of various manufacturers without the need to modify the mold of the bottom cover (or top cover) in the configuration of the LED lamp For the purpose of

상기와 같은 목적을 달성하기 위해 본 발명은, 액정패널과; 상기 액정패널하부에 구성되는 다수의 광학시트와; 상기 다수의 광학시트 하부에 구성되는 도광판과; 상기 액정패널과 상기 광학시트와 상기 도광판을 내치하여 서로 결합되는 탑 커버 및 바텀 커버와; 다수의 LED램프가 연성회로기판에 실장되며, 상기 연성회로기판의 외부회로접속부가 상기 바텀 커버와 상기 도광판 사이로 인출되는 LED어레이를 포함하는 액정표시모듈을 제공한다.The present invention to achieve the above object, the liquid crystal panel; A plurality of optical sheets formed under the liquid crystal panel; A light guide plate configured under the plurality of optical sheets; A top cover and a bottom cover in which the liquid crystal panel, the optical sheet, and the light guide plate are attached to each other; A plurality of LED lamps are mounted on a flexible printed circuit board, and an external circuit connection part of the flexible printed circuit board includes an LED array led between the bottom cover and the light guide plate.

상기 액정표시모듈에서, 상기 다수의 광학시트는 확산시트 및 프리즘시트를 포함한다.In the liquid crystal display module, the plurality of optical sheets include a diffusion sheet and a prism sheet.

상기 액정표시모듈에서, 상기 액정패널은 하나 이상의 편광판이 부착되는 것 을 특징으로 한다.In the liquid crystal display module, the liquid crystal panel is characterized in that at least one polarizing plate is attached.

상기 액정표시모듈은, 상기 도광판의 하부에 구성되는 반사판을 더욱 포함한다.The liquid crystal display module further includes a reflecting plate formed under the light guide plate.

상기 액정표시모듈에서, 상기 LED어레이는 상기 도광판의 측단에 위치하는 것을 특징으로 한다.In the liquid crystal display module, the LED array is located at the side end of the light guide plate.

상기한 특징을 제공하는 본 발명은, 바텀 커버의 금형 설계가 매우 용이하며, 아울러 제조업체마다 서로 다른 LED어레이 구동제어를 위한 외부회로접속부 인출 위치에 대한 요구를 간단하게 만족시킬 수 있다. The present invention, which provides the above-described features, is very easy to design the bottom cover of the mold, and can also satisfy the requirements for the external circuit connection lead out position for the LED array drive control different for each manufacturer.

또한 이물질 유입, 광 손실 등의 문제점이 개선되는 효과와 더불어 조립 작업이 더욱 간단해지는 장점이 있다. In addition, as well as the effect of improving the problems such as foreign matter inflow, light loss, there is an advantage that the assembly operation is more simple.

이하 첨부된 도면을 참조하여 본 발명에 대해 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 4는 본 발명에 따른 액정표시모듈의 구성을 도시한 부분 단면도로서, 액정패널(101)이 안착된 서포트 메인(Support Main)(105)과, 상기 액정패널(101)의 가장자리를 포함하여 상기 서포트 메인(105)을 감싸는 탑 커버(Top cover)(112)와, 다수의 광학시트(122, 124), 도광판(130) 및 상기 탑 커버(112)와 대응되는 바텀 커버(Bottom cover)(114)를 포함한다.4 is a partial cross-sectional view showing a configuration of a liquid crystal display module according to the present invention, including a support main 105 on which the liquid crystal panel 101 is seated, and an edge of the liquid crystal panel 101. Top cover 112 surrounding the support main 105, a plurality of optical sheets 122 and 124, a light guide plate 130, and a bottom cover 114 corresponding to the top cover 112. ).

상기 액정패널(101)은 상부 및 하부 편광판(142, 144)이 각각 부착된 두 장의 유리 기판들 사이에 액정이 주입되고, 매트릭스 형태로 배치된 액정화소셀들 각각은 박막트랜지스터(Thin Film Transistor: TFT)에 의해 구동된다. In the liquid crystal panel 101, liquid crystal is injected between two glass substrates on which upper and lower polarizers 142 and 144 are attached, respectively, and each of the liquid crystal pixel cells arranged in a matrix form is a thin film transistor (Thin Film Transistor). TFT).

상기 탑 커버(112)는 상기 서포트 메인(105)의 측면과 액정패널(101)의 가장자리를 감싸도록 절곡되며, 상기 서포트 메인(105)과 탑 커버(112)는 도시하지 않은 스크류(Screw)에 의해 조립되는 것이 일반적인 방법이다.The top cover 112 is bent to surround the side of the support main 105 and the edge of the liquid crystal panel 101, and the support main 105 and the top cover 112 are attached to a screw (not shown). It is a common method to assemble by.

상기 서포트 메인(105)은 통상 몰드물로 제작되지만 최근, 고휘도 텔레비전이나 고휘도 모니터에 대응하여 고온에 대한 방열특성이 우수한 금속 예를 들면, 알루미늄(Al)으로 제작된다.The support main 105 is usually made of a mold, but recently, it is made of a metal, for example, aluminum (Al), which is excellent in heat dissipation characteristics against a high temperature in response to a high brightness television or a high brightness monitor.

아울러 상기 액정표시모듈에 구성되는 백라이트 유닛으로는, 광을 발생시키기 위한 LED램프(132)와, 상기 LED램프(132)로부터 입사되는 광을 평면광원으로 변환하는 도광판(134)과, 상기 도광판(134)의 배면에 설치되는 반사판(136)과, 상기 도광판(134) 상부에 순차적으로 적층되는 확산시트(122), 프리즘시트(124) 등을 포함하는 다수의 광학시트들을 포함하여 구성된다. In addition, the backlight unit configured in the liquid crystal display module includes an LED lamp 132 for generating light, a light guide plate 134 for converting light incident from the LED lamp 132 into a planar light source, and the light guide plate ( And a plurality of optical sheets including a reflecting plate 136 installed on a rear surface of the 134 and a diffusion sheet 122, a prism sheet 124, etc. sequentially stacked on the light guide plate 134.

상기 LED램프(132)에서 발생되는 빛은 상기 도광판(134)의 측면에서 상기 도광판(134)에 입사된 후 상기 반사판(136)을 통해 면광원으로 전환되어 상기 액정패널(101) 측으로 제공된다. 이때 상기 도광판(134)은 두께를 가지며 경사진 배면과 수평인 전면을 가지는 형태로 제작되며, 상기 반사판(136)은 상기 도광판(134)의 배면을 통해 자신에게 입사되는 광을 상기 도광판(134) 쪽으로 재반사시킴으로써 광손실을 줄이는 역할을 한다. The light generated by the LED lamp 132 is incident on the light guide plate 134 at the side of the light guide plate 134, and then is converted into a surface light source through the reflective plate 136 and provided to the liquid crystal panel 101. In this case, the light guide plate 134 has a thickness and is formed to have a front surface that is inclined with the inclined rear surface, and the reflector plate 136 receives light incident to itself through the rear surface of the light guide plate 134. By reflecting back to the side to reduce the loss of light.

아울러 상기 LED램프(132)에서 출사된 빛의 사용 효율을 극대화하기 위해 광반사율이 높은 물질로 상기 LED램프(132)를 감싸는 램프 하우징(lamp housing)을 더욱 구성하기도 한다. In addition, in order to maximize the use efficiency of the light emitted from the LED lamp 132, a lamp housing is further configured to surround the LED lamp 132 with a material having a high light reflectance.

이러한 구성의 본 발명에 따른 액정표시모듈은 상기 LED램프(132)와, 상기 LED램프(132)를 실장하고 외부회로접속부(133)가 구성된 연성회로기판(이하, FPC)(131)을 포함한 LED어레이를 구성함에 있어서 상기 FPC(131)의 외부회로접속부(133)를 상기 도광판(134)과 상기 바텀 커버(114) 사이를 통해 액정표시모듈의 외부로 인출하는 방법을 채용한다. The liquid crystal display module according to the present invention having such a configuration includes an LED lamp 132 and a flexible circuit board (hereinafter referred to as FPC) 131 mounted with the LED lamp 132 and configured with an external circuit connection unit 133. In forming the array, a method of drawing the external circuit connection unit 133 of the FPC 131 to the outside of the liquid crystal display module through the light guide plate 134 and the bottom cover 114 is employed.

물론, 상기 도광판(134)의 하부에 반사판(136)이 구성되어 있을 경우, 상기 반사판(136)과 상기 바텀 커버(114) 사이로 상기 외부회로접속부(133)가 인출된다.Of course, when the reflective plate 136 is formed under the light guide plate 134, the external circuit connection part 133 is drawn out between the reflective plate 136 and the bottom cover 114.

이때 상기 도광판(134)과 상기 바텀 커버(114) 사이에는 기본적인 이격 마진이 존재하며, 또한 통상적으로 상기 FPC(131)의 두께가 상기 이격 마진을 넘지 않는 수준으로 매우 얇기 때문에 상기 바텀 커버(114)의 결합에 전혀 영향을 주지 않는다. In this case, a basic separation margin exists between the light guide plate 134 and the bottom cover 114, and since the thickness of the FPC 131 is typically so thin that the thickness does not exceed the separation margin, the bottom cover 114 is used. It does not affect the binding of.

도 5의 배면 사시도를 더욱 참조하여 설명하면, 반사판(136)이 배면에 노출된 형태의 액정표시모듈에서 상기 바텀 커버(114) 사이로 LED어레이의 FPC 일부분인 외부회로접속부(133)를 인출할 경우, 다음과 같은 이점이 있다.Referring to the rear perspective view of FIG. 5, when the reflective plate 136 draws the external circuit connecting portion 133, which is a part of the FPC of the LED array, between the bottom cover 114 in the liquid crystal display module having the form exposed on the rear surface. This has the following advantages:

먼저, 종래 기술에서와 같이 상기 외부회로접속부(133)의 외부 인출을 위해 상기 바텀 커버(114)에 홀(도 3의 H)을 형성할 필요가 없기 때문에 상기 바텀 커버(114)의 금형 설계가 매우 용이하며, 더불어 상기 외부회로접속부(133)의 인출 위치 결정은 상기 LED 어레이의 FPC(131) 형태 변형만으로 다양하게 변경 가능하므로 제조업체마다 서로 다른 외부회로접속부(133) 인출 위치에 대한 요구를 간단하게 만족시킬 수 있다. First, since a hole (H in FIG. 3) is not required to be formed in the bottom cover 114 for the external withdrawal of the external circuit connection unit 133 as in the related art, a mold design of the bottom cover 114 is performed. It is very easy, and the extraction position of the external circuit connection unit 133 can be changed in various ways only by changing the shape of the FPC 131 of the LED array, thereby simplifying the requirements for different external circuit connection unit 133 extraction positions for each manufacturer. Can be satisfied.

또한 종래 기술에서 형성되었던 상기 홀(도 3의 H)에 의한 문제점, 예를 들어 상기 홀(H)을 통한 이물질 유입, 광 손실 등의 문제점이 개선된다. In addition, the problems caused by the holes (H of FIG. 3), which have been formed in the prior art, for example, inflow of foreign matters through the holes H, light loss, and the like are improved.

마지막으로 종래 기술에 비해 조립 작업이 간단해 지는데, 이는 종래 기술에서 상기 홀(도 3의 H)을 통해 상기 FPC(131)의 외부회로접속부(133)를 인출해야하는 작업이 불필요하기 때문이다. Finally, as compared with the prior art, the assembling work becomes simpler, because in the prior art, the work of having to pull out the external circuit connection part 133 of the FPC 131 through the hole (H of FIG. 3) is unnecessary.

도 1은 종래 기술에 따른 액정표시모듈의 구성을 간략히 도시한 단면도1 is a cross-sectional view schematically showing the configuration of a liquid crystal display module according to the prior art.

도 2는 종래 기술에 따른 NTPC에서의 LED어레이 형태를 도시한 도면Figure 2 is a view showing the LED array form in the NTPC according to the prior art

도 3은 종래 기술에 따른 NTPC 액정표시모듈의 배면을 도시한 사시도Figure 3 is a perspective view showing the back of the NTPC liquid crystal display module according to the prior art

도 4는 본 발명에 따른 액정표시모듈의 구성을 간략히 도시한 단면도4 is a cross-sectional view schematically showing the configuration of a liquid crystal display module according to the present invention.

도 5는 본 발명에 따른 액정표시모듈의배 면을 도시한 사시도5 is a perspective view illustrating a rear surface of the liquid crystal display module according to the present invention.

<도면의 주요부분에 대한 간단한 설명><Brief description of the main parts of the drawing>

101 : 액정패널 105 : 서포트 메인101: liquid crystal panel 105: support main

112 : 탑 커버 114 : 바텀 커버112: top cover 114: bottom cover

122, 124 : 광학시트 134 : 도광판122, 124: optical sheet 134: light guide plate

136 : 반사판 131 : FPC136: reflector 131: FPC

132 : LED램프 133 : 외부회로접속부132: LED lamp 133: external circuit connection

Claims (5)

액정패널과;A liquid crystal panel; 상기 액정패널하부에 구성되는 다수의 광학시트와;A plurality of optical sheets formed under the liquid crystal panel; 상기 다수의 광학시트 하부에 구성되는 도광판과;A light guide plate configured under the plurality of optical sheets; 상기 액정패널과 상기 광학시트와 상기 도광판을 내치하여 서로 결합되는 탑 커버 및 바텀 커버와;A top cover and a bottom cover in which the liquid crystal panel, the optical sheet, and the light guide plate are attached to each other; 다수의 LED램프가 연성회로기판에 실장되며, 상기 연성회로기판의 외부회로접속부가 상기 바텀 커버와 상기 도광판 사이로 인출되는 LED어레이A plurality of LED lamps are mounted on the flexible circuit board, the LED array in which the external circuit connection portion of the flexible circuit board is drawn between the bottom cover and the light guide plate 를 포함하는 액정표시모듈Liquid crystal display module comprising a 청구항 제 1 항에 있어서,The method according to claim 1, 상기 다수의 광학시트는 확산시트 및 프리즘시트를 포함하는 액정표시모듈The plurality of optical sheets include a liquid crystal display module including a diffusion sheet and a prism sheet. 청구항 제 1 항에 있어서,The method according to claim 1, 상기 액정패널은 하나 이상의 편광판이 부착되는 것을 특징으로 하는 액정표시모듈The liquid crystal panel is a liquid crystal display module characterized in that one or more polarizing plate is attached 청구항 제 1 항에 있어서,The method according to claim 1, 상기 도광판의 하부에 구성되는 반사판을 더욱 포함하는 액정표시모듈A liquid crystal display module further comprising a reflector formed under the light guide plate. 청구항 제 1 항에 있어서,The method according to claim 1, 상기 LED어레이는 상기 도광판의 측단에 위치하는 것을 특징으로 하는 액정표시모듈The LED array is a liquid crystal display module, characterized in that located on the side end of the light guide plate
KR1020080066400A 2008-07-09 2008-07-09 Liquid crystal display module KR101244775B1 (en)

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Application Number Priority Date Filing Date Title
KR1020080066400A KR101244775B1 (en) 2008-07-09 2008-07-09 Liquid crystal display module
CN2008101869930A CN101625480B (en) 2008-07-09 2008-12-12 Liquid crystal display module
US12/314,916 US8031294B2 (en) 2008-07-09 2008-12-18 Liquid crystal display module

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CN101625480A (en) 2010-01-13

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